has role protective antigen role protective antigen Chlamydophila abortus protein Pomp90A Genetic immunization was used to functionally test the genes of C. abortus as vaccines in a mouse challenge system. Protective clone CP #4 (OMP90A, pomp90A) was diluted 1/2000 in a non-protective sublibrary pool of clones. This CP #4-spiked sublibrary conferred protection. Five clones were significantly more protective than the genes encoding fewer than 50 amino acids (CP #1 and 7, p-value of less than 0.05 when comparing lung weights). [PubMed: 15811648]. protein Allen Xiang Oliver He Protegen ID: 418; NCBI Protein GI: 187438939; NCBITaxon: 83555